Family Law Attorneys in Snohomish and King Counties
As a leading family law attorney in Mill Creek, the Law Offices of Tresa A. Sadler PLLC provides premium representation in divorce, child custody, estate planning, and probate. If you’re seeking a divorce lawyer in Mill Creek, WA, or experienced estate planning counsel, our team offers personal attention, clear strategy, and results that respect what matters most. We proudly serve clients across Snohomish County, King County, and throughout Washington.

You’ll Be Heard, Understood, and Well-Advised
Clients choose the Law Offices of Tresa A. Sadler PLLC for premium, discreet service backed by more than two decades of experience. We set realistic expectations, move efficiently, and tailor strategy for high-asset matters—from complex property division and QDROs to sophisticated wills and trusts. Many Seattle and Bellevue professionals prefer working with our Mill Creek office to avoid downtown congestion while still receiving high-caliber representation.
High-Asset Divorce, Custody, and Estate Planning—Handled with Precision
Whether you’re navigating a high-asset divorce, crafting an estate plan that protects your legacy, or administering a loved one’s estate, our coordinated approach helps you make confident decisions. We are also one of the few firms in Washington offering representation in Tulalip Tribal Court, giving clients a rare level of advocacy in sensitive family matters.

Proudly Serving Families Throughout Washington
Our firm is based in Mill Creek but trusted throughout Snohomish County, King County, and the state of Washington. From Everett to Bellevue, we provide discreet, personalized service for families navigating divorce, estate planning, and probate.
What We Do—and Why It Matters
We focus on three areas where families most need clarity and strong advocacy: Family Law & Divorce, Estate Planning, and Probate. Each practice area is managed by experienced attorneys and supported by a skilled team dedicated to your success.
Family Law & Divorce
Divorce, child custody and visitation, child and spousal support, property and asset division, prenuptial/postnuptial agreements, military orders, and QDROs for retirement account division.
Estate Planning
Customized wills and trusts, powers of attorney, healthcare directives, minor guardianship designations, and asset protection strategies tailored for high-net-worth families.
Probate
Clear guidance for executors and beneficiaries through probate administration, estate settlement, and will disputes—efficiently and with respect for your family.
Complex Matters, Clear Next Steps
Your first hour with our team is focused on facts, objectives, and options. We outline the likely path forward, including timelines and key decisions. Whether you live in Mill Creek, Edmonds, Mukilteo, or commute from Seattle or Bellevue, you’ll leave with a plan that fits your goals.
